A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5975-01-281-9557
NSN 6650-00-927-3391
NSN 5990-01-463-2279
NSN 5910-01-497-7934
NSN 6105-01-497-3122
NSN 6240-01-078-4810
NSN 6685-01-597-4246
NSN 5960-01-533-5162
NSN 5935-00-907-4076
NSN 5935-00-861-5829
NSN 6145-01-252-0394
NSN 5985-01-445-3482